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The Dexes / Heavy Rain / 340908

Eventdex · Heavy Rain

SAN BERNARDINO

340908 · 34.352, -116.528

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The record

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Event typeevent_typeHeavy Rain
NOAA NCEI event IDncei_event_id340,908
Episode IDepisode_id56,796
Begin UTCbegin_utc2011-08-01T21:45:00+00:00
End UTCend_utc2011-08-01T23:30:00+00:00
StatestateCALIFORNIA
County/zone typecz_typeC
County/zone namecz_nameSAN BERNARDINO
Latitudelat34.352
Longitudelon-116.528
End latitudeend_lat34.352
End longitudeend_lon-116.528
Deaths directdeaths_direct0
Deaths indirectdeaths_indirect0
Injuries directinjuries_direct0
Injuries indirectinjuries_indirect0
Damage propertydamage_property0.00K
Damage cropsdamage_crops0.00K
Weather forecast office sourcewfo_sourceTrained Spotter
Episode narrativeepisode_narrativeA large area of upper-level high pressure was located over the south-central portion of the country supplying So Cal with some monsoonal moisture. Broad southwest flow in mid-levels was also present. Large, isolated, deep moist convection and overshooting tops within weak southwest flow aloft developed by 2 pm on the 1st over the San Diego County Mountains, Riverside Mountains, extreme northeast San Diego County and over Onyx Peak, drifting generally northward. Tuesday the 2nd was explosive between 2 and 3 pm over the Riverside Mountains and extreme northern San Diego County. Southwest flow aloft shunted low level convergence just off the crest and Tuesday storms drained towards the deserts. Flash flooding was observed in multiple locations due to heavy downpours.
Event narrativeevent_narrativeSpotter reported 1.05 inches of rainfall in 30 minutes, causing 1-2 inches of mud and water on SR-247 near Blandford Land and Larrea Road.
Yearyear2,011

Provenance

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SAN BERNARDINO — Heavy Rain — TerraPulse